Hydraulic valveHCZFB Hydraulic valve

Mainly used in braking systems of 3–5 ton forklifts and other construction machinery of equivalent capacity;

Features a pressure-boosting ratio design, with output pressure proportional to pedal force, providing responsive braking and good inching performance. Total valve stroke: 32 mm; master cylinder bore: 57 mm; boosting ratio: 4:1; P-port supply pressure: 15 bar;

When the valve is in the released position, the P port is closed;

 When the valve is in the released position, the brake inlet port is connected to the steering oil port;

When the pedal is depressed, P-port pressure and pedal force actuate the piston to provide hydraulic boost. Further pedal force increases brake port pressure until pedal force balances hydraulic feedback force;

When the pedal is released, the valve returns to the released position.